{"id":"CVE-2020-1532","aliases":["EUVD-2020-12406","GHSA-2ch7-pmg7-vv3j"],"status":"published","title":"Windows InstallService Elevation of Privilege Vulnerability","description":"\u003cp\u003eAn elevation of privilege vulnerability exists when the Windows InstallService improperly handles memory.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how the Windows InstallService handles memory.\u003c/p\u003e","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00931,"percentile":0.60901,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-269"],"published":"2020-09-11T17:09:22Z","modified":"2026-06-17T03:01:40Z","products":[{"vendor":"microsoft","product":"windows 10 version 1903 for 32-bit systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for arm64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1903 for x64-based systems"},{"vendor":"microsoft","product":"windows 10 version 1909"},{"vendor":"microsoft","product":"windows 10 version 2004"},{"vendor":"microsoft","product":"windows server version 2004"},{"vendor":"microsoft","product":"windows server, version 1903 (server core installation)"},{"vendor":"microsoft","product":"windows server, version 1909 (server core installation)"},{"vendor":"microsoft","product":"windows_10"},{"vendor":"microsoft","product":"windows_server_2016"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1532","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-1532"},{"url":"https://github.com/advisories/GHSA-2ch7-pmg7-vv3j"}],"sources":{"cve":[{"id":"CVE-2020-1532","title":"Windows InstallService Elevation of Privilege Vulnerability","description":"\u003cp\u003eAn elevation of privilege vulnerability exists when the Windows InstallService improperly handles memory.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how the Windows InstallService handles memory.\u003c/p\u003e","status":"published","published":"2020-09-11T17:09:22Z","modified":"2024-08-04T06:39:10.532Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:35:56.638833Z"}],"euvd":[{"id":"EUVD-2020-12406","description":"\u003cp\u003eAn elevation of privilege vulnerability exists when the Windows InstallService improperly handles memory.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how the Windows InstallService handles memory.\u003c/p\u003e","status":"published","published":"2020-09-11T17:09:22Z","modified":"2024-08-04T06:39:10Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T03:08:12.895997Z"}],"ghsa":[{"id":"GHSA-2ch7-pmg7-vv3j","title":"An elevation of privilege vulnerability exists when the Windows InstallService improperly handles...","description":"An elevation of privilege vulnerability exists when the Windows InstallService improperly handles memory.To exploit this vulnerability, an attacker would first have to gain execution on the victim system, aka 'Windows InstallService Elevation of Privilege Vulnerability'.","status":"published","published":"2022-05-24T17:28:04Z","modified":"2024-01-09T05:06:01Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-269"],"updated_at":"2026-11-02T14:55:22.44362Z"}],"nvd":[{"id":"CVE-2020-1532","description":"\u003cp\u003eAn elevation of privilege vulnerability exists when the Windows InstallService improperly handles memory.\u003c/p\u003e\n\u003cp\u003eTo exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.\u003c/p\u003e\n\u003cp\u003eThe security update addresses the vulnerability by correcting how the Windows InstallService handles memory.\u003c/p\u003e","status":"published","published":"2020-09-11T17:15:21.357Z","modified":"2026-06-17T03:01:40.287Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":4.6,"vector":"AV:L/AC:L/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:14.981587Z"}]}}